WO2007073688A1 - A flat type vibration motor with increased vibration amount - Google Patents

A flat type vibration motor with increased vibration amount Download PDF

Info

Publication number
WO2007073688A1
WO2007073688A1 PCT/CN2006/003598 CN2006003598W WO2007073688A1 WO 2007073688 A1 WO2007073688 A1 WO 2007073688A1 CN 2006003598 W CN2006003598 W CN 2006003598W WO 2007073688 A1 WO2007073688 A1 WO 2007073688A1
Authority
WO
WIPO (PCT)
Prior art keywords
vibrator
circuit board
rotor
coil
vibration motor
Prior art date
Application number
PCT/CN2006/003598
Other languages
French (fr)
Chinese (zh)
Inventor
Kelong Zhao
Xuezhong Wu
Original Assignee
Byd Company Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Byd Company Limited filed Critical Byd Company Limited
Priority to US12/159,078 priority Critical patent/US7969053B2/en
Publication of WO2007073688A1 publication Critical patent/WO2007073688A1/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
    • H02K7/061—Means for converting reciprocating motion into rotary motion or vice versa using rotary unbalanced masses
    • H02K7/063—Means for converting reciprocating motion into rotary motion or vice versa using rotary unbalanced masses integrally combined with motor parts, e.g. motors with eccentric rotors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
    • H02K7/065—Electromechanical oscillators; Vibrating magnetic drives
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/02—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting
    • H02K23/04—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting having permanent magnet excitation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/167—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
    • H02K5/1677—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings radially supporting the rotor around a fixed spindle; radially supporting the rotor directly
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/47—Air-gap windings, i.e. iron-free windings

Definitions

  • the present invention relates to a DC permanent magnet vibration motor for a communication tool such as a mobile phone or a BB machine.
  • a vibration is generated to prompt or alert a flat vibration motor.
  • the structure of the current flat vibration motor is as shown in Figs. 1a and 1b.
  • the eccentric vibrator 1 and the coils a and b are glued to the circuit board 2, and then injection molded together with the intermediate oil-impregnated bearing 4 into the rotor 3, the middle shaft. 5 is fixed on the lower casing 9, the rotor is mounted on the shaft through the bearing hole, and the magnet 8 is bonded to the lower casing 9 to provide magnetic flux.
  • the brush 10 is welded to the flexible circuit board 11, and the upper casing 7 is covered on the rotating f and the lower casing, and the spacers 6a and 6b are respectively mounted on the upper and lower sides of the rotor bearing.
  • 2a, 2b are a plan of a flat vibration motor disclosed in Chinese Patent Publication No. CN1206240A.
  • coils a, b, c are offset on one side of the center, and high-density composite engineering plastic 1 is in an eccentric rotor.
  • the outer side of the rotor protrudes from the bottom surface of the rotor to increase the eccentric weight, and the protruding portion is located in the annular space between the magnet 8 and the upper casing 7.
  • the middle part is a resin with a density of less than 1.8.
  • Figures 3a, 3b provide a solution for increasing the amount of vibration of the Korean Patent Application No. 20-0333424, wherein the eccentric vibrator 1 is externally moved to the edge of the rotor and is fixed to the hard circuit board 2 by bonding with the coil, and then Combined with the middle bearing 4 by injection molding Start.
  • the vibrator in order to ensure that the vibrator does not fall off, the vibrator is molded inside the plastic, which limits the increase in the volume and eccentricity of the vibrator.
  • the eccentric weight is provided by the composite engineering plastic, the eccentric weight increase is limited, the magnet is greatly reduced in size due to the protruding portion of the rotor, the magnetic flux supplied to the motor is greatly reduced, and the motor performance is greatly reduced.
  • the object of the present invention is to ensure that the vibration amount of the flat vibration motor is not greatly reduced when the volume is reduced, and at the same time, the motor manufacturing process is simplified, and a flat vibration motor that increases the amount of vibration is provided.
  • the technical solution adopted by the present invention is: a flat type vibration motor that increases the amount of vibration, including a vibrator, a hard circuit board, a rotor, a shaft that supports the rotor in the middle of the rotor, a lower casing that fixes the shaft, and is fixed to the lower machine. a magnetic magnet on the casing, a flexible circuit board attached to the lower casing to provide a power input, a brush connected between the flexible circuit board and the rotor, and a coil formed by the vibrator by injection molding; : The coil and the hard circuit board are mounted on the vibrator to extend the outer edge of the vibrator beyond the position of the coil and the hard circuit board.
  • the present invention further includes the following features:
  • the vibrator has a protrusion on one side for coil mounting.
  • the other side of the vibrator has a mounting groove for mounting a hard circuit board having a radius smaller than the vibrator radius and directly mounted in the slot of the vibrator.
  • the vibrator is made of an alloy material having a density greater than 15 kg/ m3 , including a tungsten alloy.
  • the surface of the vibrator is plated with nickel to increase the magnetic permeability between the center of the coil and the coil to the magnet.
  • the hard circuit board of the rotor is a double panel, and the contact portion with the brush is formed as a commutator, and the radius of the circuit board is smaller than the radius of the vibrator to the center.
  • Each part of the rotor is finally injection-molded together with a composite resin having a density of less than 2 kg/ m3 .
  • the resin should have self-lubricity and wear resistance with a hole therebetween.
  • the coil and the hard circuit board are first mounted on the vibrator to form a special vibrator, and then a special vibrator containing a coil and a hard circuit board is injection molded into a rotor.
  • the coil and the hard circuit board are mounted on the vibrator, and they no longer become the blocking element of the vibrator extending outward, so that the outer edge of the vibrator extends beyond the position of the coil and the hard circuit board, so that the overall motor can be reduced and the vibrator can be realized.
  • the effect of increasing the volume increases the amount of vibration of the motor.
  • the performance of the magnets and coils remains unaffected.
  • Figure la is a structural diagram of a general-purpose vibration motor
  • Figure lb is a rotor structure diagram of a general-purpose vibration motor
  • Figure 2a is a structural view of a vibration motor disclosed in Chinese Patent Publication No. CN1206240A;
  • Figure 2b is a rotor junction of a vibration motor disclosed in Chinese Patent Publication No. CN1206240A Composition
  • Fig. 3a is a structural view of a vibration motor disclosed in Korean Patent Application No. 20-0333424
  • Fig. 3b is a structural view of a rotor of a vibration motor disclosed in Korean Patent Application No. 20-0333424;
  • Figure 4a is a structural view of a vibration motor of the present invention.
  • Figure 4b is a structural view of the end cap assembly of the vibration motor of the present invention.
  • Figure 5a is a front view of the vibrator of the vibration motor of the present invention.
  • Figure 5b is a three-dimensional view of the vibrator of the vibration motor of the present invention.
  • Figure 6a is a front view of the rotor structure of the vibration motor of the present invention.
  • Figure 6b is a rear elevational view of the rotor structure of the vibration motor of the present invention. detailed description
  • the flat vibration motor of the present invention includes an end cap portion with a power input and transmission means, a rotor that rotates and generates eccentric vibration, and a stator composed of an upper casing and a slider.
  • the stator portion includes an upper casing and a sliding piece for damping and reducing friction bonded to a central protruding annular portion thereof;
  • the end cover portion is soft by the lower casing and the input power source bonded to the lower casing a circuit board, a brush welded to the flexible circuit board, a shaft pressed into the center of the end cover, and a spacer worn under the rotor on the shaft;
  • the rotor portion is based on a vibrator having a density greater than 15 kg/ m3 , including
  • the coil is placed on the protruding part of the elliptical cylinder of the vibrator, and is made of a plastic material having a density of less than 2 kg/ m3 for injection molding.
  • 4a is a structural view of a vibration
  • the power supply input and the end cover portion provided by the magnetic flux include a lower casing 9, and the flexible circuit board 11 bonded to the lower casing by a double-sided tape, a pair of The brush 10 made of a highly elastic material is welded to the flexible circuit board, the power source passes through the flexible circuit board, and then passes through the brush to the rotor; the high magnetic magnet 8 bonded to the lower casing is magnetized by the plane quadrupole.
  • the rotor portion comprises the vibrator 1 shown in Figures 5a, 5b, which has two elliptical projections e and f, which fit exactly with the inner bore of the coil, as shown in Figures 6a, 6b, the coils a and b are mounted At the vibrator protrusions e and f, a hard circuit board 2 is mounted in a corresponding slot on the other side of the vibrator, and a non-uniformly distributed commutator piece is arranged on the front side of the hard circuit board, and a corresponding solder joint is connected to the commutator piece on the back side.
  • the coil tap is welded to the solder joint, and then the rotor is injection molded from a composite resin having self-lubricity and wear resistance, and the center hole 3a formed by injection molding is used as a bearing. Since the presence of the projections e and f increases the weight of the vibrator, the problem of the coil fixing which originally obstructs the increase in the weight of the vibrator is now an advantageous factor for the increase in the weight of the vibrator.
  • the plastic is injection molded after the coil and the hard circuit board are installed, so that the vibrator and the plastic are not fixed properly.
  • the casing part is shown in Fig. 4a, and includes a gasket 6a with double-sided tape, which is bonded to the casing 7, and the casing and the lower casing are assembled and joined by sealing or laser welding.
  • the flat vibration motor of the present invention maximizes the weight and eccentricity of the vibrator, reduces the assembly difficulty of the motor rotor, maximizes the vibration amount of the motor, and improves the production. effectiveness.
  • the vibrator is made of high-density tungsten alloy to maximize the weight per unit volume.
  • the surface of the vibrator is nickel-plated, which improves the magnetic permeability between the coil and the magnet, especially the magnetic permeability at the center of the coil, so that the other conditions are not changed. Under the premise, the magnetic flux passing through the coil is increased. '
  • the assembly of the rotor is based on the vibrator, so that the vibrator can be extended as far as possible without being blocked by the coil and the hard circuit board, thereby maximizing the volume of the vibrator.
  • the coil and the hard circuit board only need to be mounted to the vibrator. The position is then injection molded into the overall rotor.
  • the rotor is injection molded from a composite resin.
  • the resin should have self-lubricity and wear resistance.
  • the hole 3a in the middle of the injection can be used as a bearing, thereby saving oil-containing bearings and avoiding oil flow to the commutator surface without oiling. Affects motor life.

Abstract

A flat type vibration motor with increased vibration amount includes a vibrator (1), a hard circuit board (2), a rotor (3), a shaft (5), a lower case (9), a magnet (8), a soft circuit board (11), a brush (10) and coils (a, b). The rotor (3) is formed by injection molding the vibrator (1). The coils (a, b) and the hard circuit board (2) are both mounted on the vibrator (1), thus the outer edge of the vibrator (1) can extend to the position beyond the coils (a, b) and the hard circuit board (2).

Description

增加振动量的扁平型振动马达 技术领域  Flat vibration motor with increased vibration amount
本发明涉及一种用于手机、 BB机等通讯工具的直流永磁振动马 达， 在不便铃声提示的情况下， 当有信号输入时， 产生振动以提示或 警示人们的扁平型振动马达。 背景技术  The present invention relates to a DC permanent magnet vibration motor for a communication tool such as a mobile phone or a BB machine. When a signal is input, a vibration is generated to prompt or alert a flat vibration motor. Background technique
目前的扁平振动马达的结构如图 la、 lb所示， 偏心的振子 1和 线圈 a和 b用胶水粘结在线路板 2上，然后和中间的含油轴承 4一起 注塑成为转子 3， 中间的轴 5固定于下机壳 9上面， 转子通过轴承孔 安装于轴上， 磁铁 8粘接于下机壳 9上提供磁通。 电刷 10焊接于软 线路板 11上， 上机壳 7覆盖在转 f和下机壳上， 垫片 6a和 6b分别 安装于转子轴承的上下两侧。  The structure of the current flat vibration motor is as shown in Figs. 1a and 1b. The eccentric vibrator 1 and the coils a and b are glued to the circuit board 2, and then injection molded together with the intermediate oil-impregnated bearing 4 into the rotor 3, the middle shaft. 5 is fixed on the lower casing 9, the rotor is mounted on the shaft through the bearing hole, and the magnet 8 is bonded to the lower casing 9 to provide magnetic flux. The brush 10 is welded to the flexible circuit board 11, and the upper casing 7 is covered on the rotating f and the lower casing, and the spacers 6a and 6b are respectively mounted on the upper and lower sides of the rotor bearing.
图 2a、 2b是中国专利公开号 CN1206240A所公布的一种扁平振 动马达的方案， 为了增加振动量， 线圈 a,b，c偏置于中心的一侧， 高 密度的复合工程塑料 1 在偏心转子的外侧并突出转子底面以增加偏 心重量， 突出部分位于磁铁 8和上机壳 7中间的圆环空间里。 中间部 分则是密度小于 1.8的树脂。  2a, 2b are a plan of a flat vibration motor disclosed in Chinese Patent Publication No. CN1206240A. In order to increase the amount of vibration, coils a, b, c are offset on one side of the center, and high-density composite engineering plastic 1 is in an eccentric rotor. The outer side of the rotor protrudes from the bottom surface of the rotor to increase the eccentric weight, and the protruding portion is located in the annular space between the magnet 8 and the upper casing 7. The middle part is a resin with a density of less than 1.8.
图 3a、 3b提供了韩国专利申请号 20-0333424的一种增加振动量 的方案， 偏心的振子 1外移至转子边缘， 与线圈一起釆用粘结的方法 固定于硬线路板 2上，然后采用注塑的方法与中间的轴承 4结合在一 起。 Figures 3a, 3b provide a solution for increasing the amount of vibration of the Korean Patent Application No. 20-0333424, wherein the eccentric vibrator 1 is externally moved to the edge of the rotor and is fixed to the hard circuit board 2 by bonding with the coil, and then Combined with the middle bearing 4 by injection molding Start.
对于第一种方案，为了保证振子不脱落，振子就注塑在塑胶的里 面， 这样就限制了振子的体积和偏心距离的增加。  For the first solution, in order to ensure that the vibrator does not fall off, the vibrator is molded inside the plastic, which limits the increase in the volume and eccentricity of the vibrator.
第二种方案由于偏心重量是由复合工程塑料提供，偏心重量增加 很有限， 磁铁受转子突出部分影响尺寸有很大减小， 提供给马达的磁 通大大减小， 马达性能将会大大降低。  In the second scheme, since the eccentric weight is provided by the composite engineering plastic, the eccentric weight increase is limited, the magnet is greatly reduced in size due to the protruding portion of the rotor, the magnetic flux supplied to the motor is greatly reduced, and the motor performance is greatly reduced.
第三种方案虽然一定程度上增大了偏心距离，但是振子的体积增 加仍然很有限。  Although the third scheme increases the eccentricity to some extent, the volume increase of the vibrator is still very limited.
综合上述方案，都存在在马达体积减小时振动量降低比较多，马 达转子在注塑成型前， 都需要采用粘结的方法固定线圈和偏心振子， 如果固定不好， 在转子注塑时线圈和振子容易移位。 发明内容  In combination with the above schemes, there is a large amount of vibration reduction when the motor volume is reduced. Before the injection molding of the motor rotor, it is necessary to use a bonding method to fix the coil and the eccentric vibrator. If the fixing is not good, the coil and the vibrator are easy to be injected during the rotor injection molding. Shift. Summary of the invention
本发明的目的是为了保证扁平振动马达在体积减小时振动量不 会有很大减小， 同时简化马达制作工艺， 提供一种增加振动量的扁平 振动马达。  SUMMARY OF THE INVENTION The object of the present invention is to ensure that the vibration amount of the flat vibration motor is not greatly reduced when the volume is reduced, and at the same time, the motor manufacturing process is simplified, and a flat vibration motor that increases the amount of vibration is provided.
本发明采取的技术方案是： 一种增加振动量的扁平型振动马达， 包括振子、 硬线路板、 转子、 置于转子中间的支撑转子旋转的轴、 固 定轴的下机壳、 固定于下机壳上提供磁力的磁铁、贴于下机壳上提供 电源输入的软线路板、连接于软线路板和转子之间的电刷、以及线圈， 所述转子是由振子通过注塑形成； 其特征在于： 所述线圈和硬线路板 均安装在振子上， 使振子的外沿延展到超过线圈和硬线路板的位置。 优选地， 本发明还包括如下特点： The technical solution adopted by the present invention is: a flat type vibration motor that increases the amount of vibration, including a vibrator, a hard circuit board, a rotor, a shaft that supports the rotor in the middle of the rotor, a lower casing that fixes the shaft, and is fixed to the lower machine. a magnetic magnet on the casing, a flexible circuit board attached to the lower casing to provide a power input, a brush connected between the flexible circuit board and the rotor, and a coil formed by the vibrator by injection molding; : The coil and the hard circuit board are mounted on the vibrator to extend the outer edge of the vibrator beyond the position of the coil and the hard circuit board. Preferably, the present invention further includes the following features:
所述振子一面上有用于线圈安装的凸起。  The vibrator has a protrusion on one side for coil mounting.
所述振子的另一面上有用于安装硬线路板的安装槽，硬线路板的 半径小于振子半径并且直接安装在振子的槽内。  The other side of the vibrator has a mounting groove for mounting a hard circuit board having a radius smaller than the vibrator radius and directly mounted in the slot of the vibrator.
振子由密度大于 15千克 /米 3的合金材料制成， 包括钨合金。 The vibrator is made of an alloy material having a density greater than 15 kg/ m3 , including a tungsten alloy.
振子表面镀镍， 以增加线圈中心以及线圈到磁铁之间的导磁率。 转子的硬线路板是双面板， 其上面与电刷接触部分制作成换向 器， 线路板的半径小于振子到中心的半径。  The surface of the vibrator is plated with nickel to increase the magnetic permeability between the center of the coil and the coil to the magnet. The hard circuit board of the rotor is a double panel, and the contact portion with the brush is formed as a commutator, and the radius of the circuit board is smaller than the radius of the vibrator to the center.
转子的各部分零件最终由密度小于 2千克 /米 3的复合树脂注塑结 合在一起， 该树脂应具有自润性、 耐磨性， 其中间有孔。 Each part of the rotor is finally injection-molded together with a composite resin having a density of less than 2 kg/ m3 . The resin should have self-lubricity and wear resistance with a hole therebetween.
由于采用了以上方案， 先将线圈和硬线路板安装在振子上,形成' 一个特殊的振子,然后将含有线圈、 硬线路板的特殊振子注塑成转子。 线圈和硬线路板安装在振子上，它们不再成为振子向外延伸的阻挡因' 素， 使振子的外沿延展到超过线圈和硬线路板的位置， 这样， 可以实 现马达总体减小而振子体积却增大的效果， 从而增加马达的振动量。 与此同时， 磁铁和线圈的性能仍不受影响。 附图说明  Due to the above scheme, the coil and the hard circuit board are first mounted on the vibrator to form a special vibrator, and then a special vibrator containing a coil and a hard circuit board is injection molded into a rotor. The coil and the hard circuit board are mounted on the vibrator, and they no longer become the blocking element of the vibrator extending outward, so that the outer edge of the vibrator extends beyond the position of the coil and the hard circuit board, so that the overall motor can be reduced and the vibrator can be realized. The effect of increasing the volume increases the amount of vibration of the motor. At the same time, the performance of the magnets and coils remains unaffected. DRAWINGS
图 la为通用型振动马达结构图；  Figure la is a structural diagram of a general-purpose vibration motor;
图 lb为通用型振动马达的转子结构图；  Figure lb is a rotor structure diagram of a general-purpose vibration motor;
图 2a为中国专利公开号 CN1206240A公布的振动马达结构图； 图 2b为中国专利公幵号 CN1206240A公布的振动马达的转子结 构图； Figure 2a is a structural view of a vibration motor disclosed in Chinese Patent Publication No. CN1206240A; Figure 2b is a rotor junction of a vibration motor disclosed in Chinese Patent Publication No. CN1206240A Composition
图 3a为韩国专利申请号 20-0333424公布的振动马达结构图； 图 3b为韩国专利申请号 20-0333424公布的振动马达的转子结构 图；  Fig. 3a is a structural view of a vibration motor disclosed in Korean Patent Application No. 20-0333424; Fig. 3b is a structural view of a rotor of a vibration motor disclosed in Korean Patent Application No. 20-0333424;
图 4a为本发明振动马达结构图；  Figure 4a is a structural view of a vibration motor of the present invention;
图 4b为本发明振动马达的端盖组合结构图；  Figure 4b is a structural view of the end cap assembly of the vibration motor of the present invention;
图 5a为本发明振动马达的振子正视图；  Figure 5a is a front view of the vibrator of the vibration motor of the present invention;
图 5b为本发明振动马达的振子三维视图；  Figure 5b is a three-dimensional view of the vibrator of the vibration motor of the present invention;
图 6a为本发明振动马达的转子结构正视图；.  Figure 6a is a front view of the rotor structure of the vibration motor of the present invention;
图 6b为本发明振动马达的转子结构后视图。 具体实施方式  Figure 6b is a rear elevational view of the rotor structure of the vibration motor of the present invention. detailed description
下面结合附图 4a—图 6b说明本发明的优选实施例， 其中相同的 参考编号在整个附图中表示相同或相近似的部件。  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, wherein the same reference numerals refer to the same or similar parts throughout the drawings.
本发明的扁平振动马达包括带有电源输入和传递装置的端盖部 分， 旋转并产生偏心振动的转子， 以及由上机壳和滑片组成的定子。 定子部分包括上机壳和粘接于其中心突出圆环部分的用于减震和减 小摩擦的滑片； 端盖部分是由下机壳、粘接于下机壳上的输入电源的 软线路板、 焊接于软线路板上的电刷、 压入端盖中心的轴、 穿在轴上 在转子下面的垫片组成； 转子部分是以密度大于 15千克 /米 3的振子 为基体， 包括套在振子椭圆柱突出部分的线圈， 和注塑成型用的密度 小于 2千克 /米 3的塑胶材料组成。 图 4a为本发明振动马达结构图； 图 4b为本发明振动马达的端盖 组合结构图。 The flat vibration motor of the present invention includes an end cap portion with a power input and transmission means, a rotor that rotates and generates eccentric vibration, and a stator composed of an upper casing and a slider. The stator portion includes an upper casing and a sliding piece for damping and reducing friction bonded to a central protruding annular portion thereof; the end cover portion is soft by the lower casing and the input power source bonded to the lower casing a circuit board, a brush welded to the flexible circuit board, a shaft pressed into the center of the end cover, and a spacer worn under the rotor on the shaft; the rotor portion is based on a vibrator having a density greater than 15 kg/ m3 , including The coil is placed on the protruding part of the elliptical cylinder of the vibrator, and is made of a plastic material having a density of less than 2 kg/ m3 for injection molding. 4a is a structural view of a vibration motor of the present invention; and FIG. 4b is a structural view of an end cover of the vibration motor of the present invention.
根据本发明实施例的增加振动量的扁平振动马达，其电源输入和 磁通提供的端盖部分包括下机壳 9， 用双面胶粘结在下机壳上的软线 路板 11， 一对由高弹性材料制成的电刷 10焊接于软线路板上， 电源 通过软线路板， 然后经过电刷传至转子； 粘接在下机壳上的高磁性磁 铁 8， 采用平面四极充磁。  A flat vibration motor for increasing the amount of vibration according to an embodiment of the present invention, the power supply input and the end cover portion provided by the magnetic flux include a lower casing 9, and the flexible circuit board 11 bonded to the lower casing by a double-sided tape, a pair of The brush 10 made of a highly elastic material is welded to the flexible circuit board, the power source passes through the flexible circuit board, and then passes through the brush to the rotor; the high magnetic magnet 8 bonded to the lower casing is magnetized by the plane quadrupole.
转子部分包括图 5a、 5b所示的振子 1， 该振子上具有两个椭圆 形凸起 e和 f， 正好与线圈的内孔相配合， 如图 6a、 6b所示， 线圈 a 和 b安装于振子凸起 e和 f处， 在振子的另一面的相应槽内， 安装有 硬线路板 2， 硬线路板正面有不均匀分布的换向片， 背面有相应的焊 点与换向片连接， 线圈抽头焊接在焊点上， 然后用具有自润性和耐磨 性的复合树脂注塑形成转子，注塑形成的中心孔 3a就作为轴承使用。 由于凸起 e和 f的存在增加了振子的重量， 这样， 原来妨碍振子重量 增加的线圈固定问题， 现在反而成为振子重量增加的有利因素。塑胶 是在线圈和硬线路板安装好后注塑进去的，所以不会产生振子和塑胶 固定不好的情况。  The rotor portion comprises the vibrator 1 shown in Figures 5a, 5b, which has two elliptical projections e and f, which fit exactly with the inner bore of the coil, as shown in Figures 6a, 6b, the coils a and b are mounted At the vibrator protrusions e and f, a hard circuit board 2 is mounted in a corresponding slot on the other side of the vibrator, and a non-uniformly distributed commutator piece is arranged on the front side of the hard circuit board, and a corresponding solder joint is connected to the commutator piece on the back side. The coil tap is welded to the solder joint, and then the rotor is injection molded from a composite resin having self-lubricity and wear resistance, and the center hole 3a formed by injection molding is used as a bearing. Since the presence of the projections e and f increases the weight of the vibrator, the problem of the coil fixing which originally obstructs the increase in the weight of the vibrator is now an advantageous factor for the increase in the weight of the vibrator. The plastic is injection molded after the coil and the hard circuit board are installed, so that the vibrator and the plastic are not fixed properly.
机壳部分如图 4a， 包括带有双面胶的垫片 6a， 粘接在机壳 7上， 机壳与下机壳组合装配后用封口或激光焊接的方法连接。  The casing part is shown in Fig. 4a, and includes a gasket 6a with double-sided tape, which is bonded to the casing 7, and the casing and the lower casing are assembled and joined by sealing or laser welding.
工作时， 电流从软线路板 11处流入， 经过电刷 10传入硬线路板 2上的换向片， 再传入线圈 a或 b， 通电的线圈在磁铁 8的磁场中就 会产生相对于轴 5的旋转的力矩， 在换向器的作用下， 线圈 a或 b中 的电流周期性变化， 从而产生持续的旋转力矩， 偏心的转子在旋转时 就会产生振动。 During operation, current flows from the flexible circuit board 11 and passes through the brush 10 to the commutator on the hard circuit board 2, and then to the coil a or b. The energized coil is generated in the magnetic field of the magnet 8 relative to The moment of rotation of the shaft 5, under the action of the commutator, in the coil a or b The current changes periodically, resulting in a continuous rotational moment, and the eccentric rotor vibrates as it rotates.
从上述描述显示出， 本发明的扁平振动马达， 最大限度的增大了 振子的重量和偏心距离， 减小了马达转子的组装难度， 最大限度的增 大了马达的振动量并提高了生产的效率。  It is shown from the above description that the flat vibration motor of the present invention maximizes the weight and eccentricity of the vibrator, reduces the assembly difficulty of the motor rotor, maximizes the vibration amount of the motor, and improves the production. effectiveness.
本发明的优点是：  The advantages of the invention are:
振子由高密度钨合金制作， 最大限度提高了单位体积的重量； 振子表面镀镍， 提高了线圈和磁铁之间的导磁率， 特别是提高了 线圈中心的导磁率， 从而使在不改变其它条件的前提下， 提高了穿过 线圈的磁通量。 '  The vibrator is made of high-density tungsten alloy to maximize the weight per unit volume. The surface of the vibrator is nickel-plated, which improves the magnetic permeability between the coil and the magnet, especially the magnetic permeability at the center of the coil, so that the other conditions are not changed. Under the premise, the magnetic flux passing through the coil is increased. '
转子的组装是以振子为基础，从而使振子可以尽可能向外延展而 不受线圈和硬线路板的且挡， 最大限度的提高了振子的体积， 线圈和 硬线路板只需要安装到振子相应的位置， 然后注塑成为整体的转子。  The assembly of the rotor is based on the vibrator, so that the vibrator can be extended as far as possible without being blocked by the coil and the hard circuit board, thereby maximizing the volume of the vibrator. The coil and the hard circuit board only need to be mounted to the vibrator. The position is then injection molded into the overall rotor.
转子由复合树脂注塑成型， 该树脂应具有自润性和耐磨性， 注塑 中间的孔 3a可以作为轴承使用， 从而节省了含油轴承， 而且因为不 用注油而避免了油流到换向器表面而影响马达寿命。  The rotor is injection molded from a composite resin. The resin should have self-lubricity and wear resistance. The hole 3a in the middle of the injection can be used as a bearing, thereby saving oil-containing bearings and avoiding oil flow to the commutator surface without oiling. Affects motor life.

Claims

权利要求书 Claim
1. 一种增加振动量的扁平型振动马达， 包括振子 （1)、 硬线路 板 （2)、 转子 （3)、 置于转子 （3) 中间的支撑转子旋转的轴 （5)、 固定轴（5)的下机壳（9)、固定于下机壳（9)上提供磁力的磁铁（8)、 贴于下机壳（9)上提供电源输入的软线路板（11)、 连接于软线路板1. A flat vibration motor that increases the amount of vibration, including a vibrator (1), a hard circuit board (2), a rotor (3), a shaft (5) that supports the rotor rotation in the middle of the rotor (3), and a fixed shaft (5) a lower casing (9), a magnet (8) fixed to the lower casing (9) for supplying a magnetic force, a flexible circuit board (11) attached to the lower casing (9) for supplying power, and connected to Flexible circuit board
(11) 和转子 （3) 之间的电刷 （10)、 以及线圈 （a、 b)， 所述转子 (3) 是由振子 （1) 通过注塑形成； 其特征在于： 所述线圈 （a、 b) 和硬线路板 （2) 均安装在振子 （1) 上， 使振子 （1) 的外沿延展到 超过线圈 （a、 b) 和硬线路板 （2) 的位置。 (11) a brush (10) between the rotor and the rotor (3), and a coil (a, b) formed by injection molding of the vibrator (1); characterized in that: the coil (a , b) and the hard circuit board (2) are mounted on the vibrator (1) to extend the outer edge of the vibrator (1) beyond the coil (a, b) and the hard circuit board (2).
2. 如权利要求 1 所述的增加振动量的扁平型振动马达， 其特征 是： 所述振子 （1) 一面上有用于线圈 （a、 b) 安装的凸起 （e、 f)。 2. The flat vibration motor according to claim 1, wherein: the vibrator (1) has a projection (e, f) for mounting the coil (a, b) on one surface.
3. 如权利要求 2所述的增加振动量的扁平型振动马达， 其特征 是： 所述振子 （1) 的另一面上有用于安装硬线路板 （2) 的安装槽， 硬线路板的半径小于振子 （1) 半径并且直接安装在振子的槽内。 3. The flat vibration motor according to claim 2, wherein: on the other surface of the vibrator (1), there is a mounting groove for mounting the hard circuit board (2), and a radius of the hard circuit board It is smaller than the radius of the vibrator (1) and is directly mounted in the groove of the vibrator.
4. 如权利要求 1 所述的增加振动量的扁平型振动马达， 其特征 是：振子（1)由密度大于 15千克 /米 3的合金材料制成，包括钨合金。 是： 振子 （1 )表面镀镍， 以增加线圈中心以及线圈到磁铁之间的导 磁率。 4. The vibration type flat vibration motor according to claim 1, wherein the vibrator (1) is made of an alloy material having a density of more than 15 kg/ m3 , including a tungsten alloy. YES: The surface of the vibrator (1) is plated with nickel to increase the magnetic permeability between the coil center and the coil to the magnet.
6. 如权利要求 3所述的增加振动量的扁平型振动马达， 其特征 是： 转子 （3) 的硬线路板（2)是双面板， 其上面与电刷接触部分制 作成换向器， 线路板 （2) 的半径小于振子 （1 ) 到中心的半径。 6. The flat vibration motor with increased vibration amount according to claim 3, wherein: the hard circuit board (2) of the rotor (3) is a double panel, and the contact portion with the brush is formed as a commutator. The radius of the board (2) is smaller than the radius of the vibrator (1) to the center.
7. 如权利要求 1 所述的增加振动量的扁平型振动马达， 其特征 是： 转子 （3) 的各部分零件最终由密度小于 2千克 /米 3的复合树脂 注塑结合在一起， 该树脂应具有自润性、 耐磨性， 其中间有孔（3a)。 7. The flat vibration motor with increased vibration amount according to claim 1, wherein: each part of the rotor (3) is finally injection-molded by a composite resin having a density of less than 2 kg/ m3 , and the resin should be It has self-lubricating and wear-resistant properties with a hole (3a) in between.
PCT/CN2006/003598 2005-12-26 2006-12-26 A flat type vibration motor with increased vibration amount WO2007073688A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/159,078 US7969053B2 (en) 2005-12-26 2006-12-26 Flat type vibration motor with increased vibration amount

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2005101213307A CN1992474B (en) 2005-12-26 2005-12-26 Flat vibrating motor for increasing vibration
CN200510121330.7 2005-12-26

Publications (1)

Publication Number Publication Date
WO2007073688A1 true WO2007073688A1 (en) 2007-07-05

Family

ID=38192800

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2006/003598 WO2007073688A1 (en) 2005-12-26 2006-12-26 A flat type vibration motor with increased vibration amount

Country Status (4)

Country Link
US (2) US7969053B2 (en)
KR (1) KR100993661B1 (en)
CN (1) CN1992474B (en)
WO (1) WO2007073688A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100903749B1 (en) * 2007-10-16 2009-06-19 엘지이노텍 주식회사 Rotor and vibration motor
CN201274442Y (en) * 2008-08-08 2009-07-15 瑞声声学科技(深圳)有限公司 Motor
KR20110042745A (en) * 2009-10-20 2011-04-27 삼성전기주식회사 Linear vibration generator
JP2011234532A (en) * 2010-04-28 2011-11-17 Nidec Seimitsu Corp Flat vibration motor
CN102510165B (en) * 2011-11-02 2013-10-23 无锡富岛精工有限公司 Reversible vibration motor
KR101309405B1 (en) * 2012-01-20 2013-09-17 삼성전기주식회사 Vibration motor
CN104269951A (en) * 2014-09-17 2015-01-07 平湖市海特合金有限公司 Vibrator capable of enabling coil to be mounted conveniently
DE102015110266A1 (en) 2015-06-25 2016-12-29 C. & E. Fein Gmbh Oscillating power tool with balanced armature shaft
CN105186820B (en) * 2015-08-13 2017-12-26 青岛海信移动通信技术股份有限公司 Flat motor and mobile terminal
CN105262264A (en) * 2015-11-09 2016-01-20 昆山联滔电子有限公司 Flat vibration motor
WO2017109818A1 (en) * 2015-12-22 2017-06-29 Sony Mobile Communications Inc. Vibrator assemblies and electronic devices incorporating same
CN106208613B (en) * 2016-07-21 2018-09-21 瑞声科技(新加坡)有限公司 Linear vibration electric motor
CN108282724B (en) * 2018-01-03 2021-01-12 瑞声科技（南京）有限公司 Mobile terminal
CN111224528B (en) * 2018-11-26 2021-11-19 讯芯电子科技（中山）有限公司 Vibration motor and electronic equipment using same
CN109787412B (en) * 2019-01-31 2023-12-15 重庆昆旺电子有限责任公司 Powerful vibration motor
CN109560650B (en) * 2019-01-31 2023-10-20 重庆昆旺电子有限责任公司 Miniature motor with automatic fastening casing

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002010579A (en) * 2000-06-19 2002-01-11 Tokyo Parts Ind Co Ltd Rotor including commutator member wired with printed wiring and flat type motor including the rotor
US6448677B1 (en) * 2001-04-20 2002-09-10 Samsung Electro-Mechanics Co., Ltd. Flat-type vibration motor
CN1574555A (en) * 2003-06-20 2005-02-02 三星电机株式会社 Flat type vibration motor

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1206240A (en) * 1997-07-04 1999-01-27 东京零件工业股份有限公司 Centre-of-gravity motion increased flat coreless vibrating motor
US6291915B1 (en) * 1999-01-28 2001-09-18 Tokyo Parts Industrial Co., Ltd. Eccentric rotor for a compact vibrator motor and the compact vibrator motor incorporating the eccentric rotor
US6169348B1 (en) * 1998-12-30 2001-01-02 Samsung Electro-Mechanics Co., Ltd. Flat type two-phase vibration motor
KR100297336B1 (en) * 1999-01-29 2001-10-22 가이 가즈오 Eccentric commutator, manufacturing method thereof and flat coreless vibrator motor using the eccentric commutator
KR100360126B1 (en) * 2000-01-04 2002-11-08 주식회사 삼부커뮤닉스 Vibrator
US6246143B1 (en) * 2000-03-20 2001-06-12 Tokyo Parts Industrial Co., Ltd. Flat coreless vibrator motor using magnetic latching power
US6359364B1 (en) * 2000-05-30 2002-03-19 Tokyo Parts Industrial Co., Ltd. Brush apparatus of small motor and method for manufacturing the same
KR20020001108A (en) * 2000-06-26 2002-01-09 이형도 Rotor of vibration motor for cellular phone
KR100377562B1 (en) * 2000-08-21 2003-03-29 주식회사 우성기업 Flat coreless vibrator motor
JP2002210410A (en) * 2001-01-18 2002-07-30 Tokyo Parts Ind Co Ltd Axially gapped eccentric rotor provided with halt position holding means and flat coreless vibration motor using the eccentric rotor
CN1383254A (en) * 2001-04-25 2002-12-04 三星电机株式会社 Flatness vibrating motor
TW565985B (en) * 2001-06-29 2003-12-11 Tokyo Parts Industry Co Ltd Eccentric rotor having high density member, method for manufacturing the rotor and flat coreless vibration motor using the rotor
KR100509643B1 (en) 2001-09-21 2005-08-23 학교법인 인하학원 Method for greening of slope by waist-tire
JP2003309951A (en) * 2002-04-11 2003-10-31 Tokyo Parts Ind Co Ltd Axial sliding commutator having noble-metal plated commutator fragment, rotor equipped with the commutator and axial-space type motor equipped with the rotor
JP4298311B2 (en) * 2003-02-07 2009-07-15 キヤノン株式会社 motor
KR100549881B1 (en) * 2003-05-13 2006-02-06 엘지이노텍 주식회사 Flat Type Vibration Motor
JP3560601B1 (en) * 2003-05-21 2004-09-02 東京パーツ工業株式会社 Molded eccentric rotor and axial gap type coreless vibration motor having the same rotor
KR200333424Y1 (en) 2003-08-07 2003-11-17 김종대 Flat Type Coreless Vibrating Motor
KR100583145B1 (en) * 2004-04-29 2006-05-23 엘지이노텍 주식회사 Vibration motor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002010579A (en) * 2000-06-19 2002-01-11 Tokyo Parts Ind Co Ltd Rotor including commutator member wired with printed wiring and flat type motor including the rotor
US6448677B1 (en) * 2001-04-20 2002-09-10 Samsung Electro-Mechanics Co., Ltd. Flat-type vibration motor
CN1574555A (en) * 2003-06-20 2005-02-02 三星电机株式会社 Flat type vibration motor

Also Published As

Publication number Publication date
US7723881B2 (en) 2010-05-25
US7969053B2 (en) 2011-06-28
KR100993661B1 (en) 2010-11-10
KR20080085861A (en) 2008-09-24
US20070145841A1 (en) 2007-06-28
CN1992474B (en) 2010-08-25
CN1992474A (en) 2007-07-04
US20090230796A1 (en) 2009-09-17

Similar Documents

Publication Publication Date Title
WO2007073688A1 (en) A flat type vibration motor with increased vibration amount
KR20110101516A (en) Vibration motor
KR100726243B1 (en) Vibration motor
US20090267434A1 (en) Vibration motor
JP2006020485A (en) Pattern coil type vertical vibrator
CN207150385U (en) A kind of linear vibration motor
KR101354518B1 (en) Linear type vibration motor
KR101179329B1 (en) Linear vibrator
JP2007181391A (en) Vibration motor
KR100699412B1 (en) A Vibration Motor Mounting Weight Inside And A Method For Fabricating A Vibration Motor
JP3650978B2 (en) Rotating shaft support member and small motor
KR100853239B1 (en) plate type BLDC vibration motor
KR102138337B1 (en) flat brushless vibration motor
KR100691798B1 (en) Coin type brushless vibration motor
KR101090680B1 (en) Flat type vibration motor
KR101090677B1 (en) Flat type vibration motor
JP4565133B2 (en) Inner rotor type vibration motor
CN212210665U (en) Electric motor
KR101090679B1 (en) Flat type vibration motor
JP2005012935A (en) Molded eccentric rotor, and axial air-gap type coreless vibrating motor equipped with that rotor
WO2024050898A1 (en) Vibration exciter
KR200367224Y1 (en) Flat Type Vibration Motor
KR100629248B1 (en) Motor
KR200363705Y1 (en) Coin Type Driving Motor Having Inseparate Eccentric Weight
CN114938121A (en) Linear vibration motor and implementation method thereof

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 1020087016706

Country of ref document: KR

WWE Wipo information: entry into national phase

Ref document number: 12159078

Country of ref document: US

122 Ep: pct application non-entry in european phase

Ref document number: 06828452

Country of ref document: EP

Kind code of ref document: A1